Order Aspergillales is a group of filamentous fungi, also known as mold, belonging to the phylum Ascomycota. Synonyms for this order include Eurotiales and Penicilliales. The term Eurotiales refers to those species producing ascocarps with a more or less uniform wall, while the term Penicilliales describes species with a branching conidiophore resembling a brush or penicil. Other synonyms for this order include the older names Aspergillaceae and Monosporeales, which were used before the molecular analysis affirmed the phylogenetic position of this group. Aspergillus, Penicillium, and Eurotium are some common genera of Aspergillales, which are widely distributed in nature and commonly used for various industrial applications.